PHP语言切换器需要在URL中更新

我有一个在语言之间切换的选项，它工作得非常好-问题是，url保持不变，我需要使其动态，以便在特定语言选择中共享链接。你知道我该如何实施吗

LanguageSwitcher.php

<?php
session_start();
if($_GET['la']){
    $_SESSION['la'] = $_GET['la'];
    header('Location:'.$_SERVER['PHP_SELF']);
    exit();
}

switch($_SESSION['la']){
     case "en":
        require('lang/en.php');
    break;
    case "dk":
        require('lang/dk.php');
    break;
    default:
        require('lang/en.php');
    }
?>

下拉列表：

<li><a class="dropdown-item" href="index.php?la=en"><img class="ml-3" src="assets/images/flag_uk.png" alt="<?=$lang['lang-en'];?>" title="<?=$lang['lang-en'];?>" style="width: 25px;"/><span class="ml-3"><?=$lang['lang-en'];?></span></a></li>
<li><a class="dropdown-item" href="index.php?la=dk"><img class="ml-3" src="assets/images/flag_dk.png" alt="<?=$lang['lang-dk'];?>" title="<?=$lang['lang-dk'];?>" style="width: 25px;"/><span class="ml-3"><?=$lang['lang-dk'];?></span></a></li>

主要要求是不要在会话中存储语言，而是始终在URL中提供语言，这是一项小工作，因为您需要更新所有页面上的所有URL

有两种方式浮现在脑海中，其中一种取决于个人偏好

使用

获取

/

请求

---

• 导致URL的格式：

  https://example.com/subpage?la=en

• 简单，几乎不需要管理工作

更新所有页面上的所有URL以包括以下语言：

https://example.com/subpage?la=<?= htmlspecialchars($_GET['la']) ?>

https://example.com/en/subpage

lang/en.php

<?php
switch ($_GET['la']) {
    default:
        // no break ('en' is default)
    case 'en':
        require('lang/en.php');
        break;
    case 'dk':
        require('lang/dk.php');
        break;
}

<!-- some beautiful HTML content here -->
Visit us at https://example.com/subpage?la=<?= htmlspecialchars($_GET['la']) ?>
<!-- another beautiful HTML content here -->

<?php
use Slim\Factory\AppFactory;

require __DIR__ . '/../vendor/autoload.php';

$app = AppFactory::create();

$app->any('/en[/{path:.*}]', function ($request, $response, array $args) {
    // you can also directly put code here,
    // use the $request and $response objects
    // or many other helper classes and methods
    require 'lang/en.php';
});

$app->any('/dk[/{path:.*}]', function ($request, $response, array $args) {
    // you can also directly put code here,
    // use the $request and $response objects
    // or many other helper classes and methods
    require 'lang/dk.php';
});

$app->run();

<!-- some beautiful HTML content here -->
Visit us at https://example.com/en/subpage
<!-- another beautiful HTML content here -->

例如：

index.php

<?php
switch ($_GET['la']) {
    default:
        // no break ('en' is default)
    case 'en':
        require('lang/en.php');
        break;
    case 'dk':
        require('lang/dk.php');
        break;
}

<!-- some beautiful HTML content here -->
Visit us at https://example.com/subpage?la=<?= htmlspecialchars($_GET['la']) ?>
<!-- another beautiful HTML content here -->

<?php
use Slim\Factory\AppFactory;

require __DIR__ . '/../vendor/autoload.php';

$app = AppFactory::create();

$app->any('/en[/{path:.*}]', function ($request, $response, array $args) {
    // you can also directly put code here,
    // use the $request and $response objects
    // or many other helper classes and methods
    require 'lang/en.php';
});

$app->any('/dk[/{path:.*}]', function ($request, $response, array $args) {
    // you can also directly put code here,
    // use the $request and $response objects
    // or many other helper classes and methods
    require 'lang/dk.php';
});

$app->run();

<!-- some beautiful HTML content here -->
Visit us at https://example.com/en/subpage
<!-- another beautiful HTML content here -->

---

谢谢你的回答@Marcello，我一定会深入调查。欢迎回来询问任何问题。祝你好运